Handsaw.



F. T. WEAVER.

HANIDSAW.

APPLICAHON FILEQMAR. 23. ms.

1,287,537.. Patented D6010, 191s.

F 2 Wave) awe am: 1

FRED T. WEAVER, OF FRACKVILLE, PENNSYLVANIA.

HANDSAW.

Specification of Letters Patent. Patented Dec. 10, 1918.

Application filed. March 23, 1918. Serial No. 224,301.

To all whom it may concern:

Be it known that I, FRED T. weaves, a citizen of the United States, reslding at Frackville, in the county of Schuylkill and State of Pennsylvania, have invented certain new and useful Improvements in Handsaws, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to certain improvements in hand saws and it is an object of the invention to provide a device of this general character having a novel and improved means whereby the force of the cutting stroke is imposed upon the cutting or-toothed edge of the blade whereby the cutting operation is efiected with increased speed and with less effort than is possible with hand saws of the type now generally in use.

It is also an object of the invention to provide a novel and improved hand saw wherein the grip is arranged in alinement with the lower or cutting margin of the blade and is perpendicularly related to the cutting o toothed edge of the blade. 7 Another object of the invention is to provided a novel and improved hand saw where.- in the handle thereof is provided with a grip for one hand and provided with means whereby a supplemental grip may be obtained with the second hand and which is of special importance when the blade is employed upon material offering unusual resistance and which also serves to stifien' the blade and thereby preventing it from buckling up.

An additional object of the invention is to provide a novel and improved hand saw wherein the handle thereof is provided with a removable insert so that the lower portion of the handle may be adjusted transversely of the blade or raised to compensate for'the wear of the blade due to the filing of the blade incident to the sharpening of the teeth thereof and whereby the life of the saw is materially prolonged.

The invention consists in the details of construction and in the combination and arrangement of the several parts of my improved hand saw whereby certain important advantages are attained and the device rendered simpler, less expensive and otherwise more convenient and advantageous for use, as will be hereinafter more fully set forth. The novel features of my invention will hereinafter be definitely claimed.

In order that my invention may be the better understood, I will now proceed to describe the same with reference to the accompanymg drawings, wherein:

Figure 1 is a fragmentary view in side elevation of a hand saw constructed in accordance with an embodiment of my invention with certain of the parts broken away;

Fig. 2 is a sectional view taken substantially on the line 2-2 of Fig. 1;

Fig. 3 is a sectional view taken substantially on the line 3-3 of Fig. 1;

Fig. 4: is a sectional View taken substantially on the line 4l4 of Fig. 1; and

Fig. 5 is a fragmentary view in elevation illustrating a modified form of my invention.

As dis-closed in the accompanying drawings B denotes a. saw blade of a rip or .hooked toothed type and 'H denotes the handle in its entiret and which is engaged with the butt end of the bladeB. The forward end portion of he handle H isprovided with a kerf 1 in which is seated the butt end of the saw and said forward end portion of the handle H is provided with the upwardly directed extension 2 terminating at its upper end portion in the forwardly directed extension 3. The kerf l of the handle proper is continued through the extensions 2 and 3. Disposed through the forward port-ion of the handle H, the extension 2 and the butt end of the blade B are the holding members or screws 4: equidistantly spaced and alined transversely of the blade B and positioned in a plane substantially parallel to the butt edge of the blade B and the bottom wall of the kerf 1, with which the butt end of the blade B contacts, whereby an effective and secure connection is obtained between the handle H and the blade B. Disposed through the eX- tension 3 and the blade B is an additional holding member or screw 5.

The body or major portion of the handle H is of a width lessthan the Width of the blade B and is arranged at the bottom or cuttingmarginal portion of the blade and said handle rearwardly of the butt edge of the blade B is provided with a hand opening 6 having its major diameter perpendicular tothe cutting or toothed edge of the blade B and which results in the grip 7 similarly arranged relative to such cutting or toothed edge of the blade. Said grip is positioned substantially in line with the cutting or toothed edge of the blade and such cutting or toothed edge of the blade will therefore receivethe full force of the the initial width of the saw has been reduced by filing the teeth to a point beyond the longitudinal center of the hand opening 6 and without effecting the speed or cutting qualifications of the blade. It will also be understood that by use of the holding members r screws the forward portion of the handle and the extension 2 thereof overlying the butt end portion of the blade may be relatively narrow so that it is possible to obtain a maximum cutting stroke with the blade.

In practice it has been fully established that with a blade 26 inches long an effective cutting stroke or sweep of 2&1; inches is easily obtained.

The upper edge of the handle II in substantially longitudinal alinement with the hand opening 6 is recessed or cut out to afford a seat 8 to receive a thumb of a second hand of the operator when it is found dey sirable to use both hands during a sawing operation and which is of advantage when the saw is employed in connection with work offering unusual resistance. The extension :Zat this time serves as a supplemental handle. With the thumb of the second or left hand resting within the seat 8 the fingers and particularly the first two fingers are adapted to grasp the upper forward edge of the extension 2 at one side of the blade B and preferably at the point a at the junction of said forward edge of the extension 2 with the under marginal portion of the corresponding side of the extension 3.

It is preferred that the handle H intermediate the extension 3 and the upper screw at be provided with a removable insert or section S which is maintained in applied position through the medium of the pins 9 preferably three in number. One of the pins 9 is arranged directly behind the blade 13 while the remaining two pins are positioned at opposite sides of the blade. The insert or section S may be of any width desired, but

as herein disclosed, it is of a width to com- 'pensate for the filing away of the toothed n'iargin of the saw after about four years use. Afterthe toothed margin of the blade has been materially filed away so as to bring such margin a material distance inwardly of the adjacent end portion of the handle II, the screws t are removed and the insert or section S withdrawn after the pins 9 have been displaced. The lower portion of the handle H is then moved upwardly or inwardly and the screws 4. en-

ged with the butt of the blade through the supplemental openings 10.

In actual practice I find it of advantage to have the insert or section S about seveneighths of an inch in width as this is the approximate extent of the filing of the working edge of a blade in about four years of use by a carpenter active in the trade. It will be understood, however, that if preferred aplurality of inserts of lesser width may be used, but as this is not believed to embody any pronounced structural distinctions, a detailed description and illustration thereof is believed to be unnecessary.

It is also to be observed that the pins 9, when the insert or section S is in applied position, are entirely concealed and afford no hindrance or obstruction in any way to the use of the saw.

In Fig. 5, I disclose a modified form of my invention and wherein the insert or section S, when in applied position, interlocks with the adjacent ends of the sections of the extension 2 through the medium of interlocking dove-tailed grooves and ribs as indicated at 11.

From the foregoing description, it is thought to be obvious that a hand sawconstructed in accordance with my invention is particularly well adapted for use by reason of the convenience and facility with which it may be assembled and operated and it will also be obvious that my invention is susceptible of some change and modification without departing from the principles and spirit thereof and for this reason I do not wish to be understood as limiting myself to the precise arrangement and formation of the several parts herein shown in carrying out my invention in practice except as hereinafter claimed.

I claim:

1. As a new article of manufacture, a hand saw comprising a blade, a handle provided with a kerf to receive the butt end portion of the blade, said handle being provided with a hand opening having its major aXis perpendicular to the cutting edge of the blade, and a plurality of holding members disposed through the handle and the blade and alined transversely of the blade, the plane of the holding members being parallel with the butt edge of the blade and with the bottom wall of the kerf, the butt edge of the blade contacting with the bottom wall of the kerf.

2. As a new article of manufacture, a

saw comprising a blade, a handle engaged with the butt end of the blade, said handle being provided with a grip adjacent the lower portion of the blade and with an extension engaged with the upper portion of the blade, said extension including a removable insert.

8. As a new article of manufacture, a saw comprising a blade, a handle engaged with the butt end of the blade, said handle being provided with a grip adjacent the lower portion of the blade and with an extension en gaged with the upper portion of the blade, said extension including a removable insert, and pins disposed through the insert and engaged with the lower portion of the handle and the outer portion of the extension for maintaining the insert in applied position.

4. As a new article of manufacture, a saw comprising a blade, a handle engaged with the butt end of the blade, said handle being provided with a grip adjacent the lower portion of the blade and with an extension engaged with the upper portion of the blade, said extension including a removable insert, and pins disposed through the insert and engaged with the lower portion of the han- (dle and the outer portioir of the extension for maintaining the insert in applied position, said pins being arranged at opposite sides of the blade and rearwardly thereof.

5. As a new article of manufacture, a saw comprising a blade, a handle engaged with the butt end of the blade, said handle being provided with a grip adjacent the lower portion of the blade and with an extension provided with a grip of a length less than the width of the blade, said handle adjacent an end of the grip being provided with a removable insert.

In testimony whereof I hereunto aflix my signature in the presence of two witnesses.

FRED T. WEAVER.

Witnesses:

OSCAR M. GRoFr, S. T. PUMELL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G." 

